97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
/****************************************************************************
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** Copyright (c) 2016, Fougue Ltd. <http://www.fougue.pro>
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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**
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** 2. Redistributions in binary form must reproduce the above
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** copyright notice, this list of conditions and the following
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** disclaimer in the documentation and/or other materials provided
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** with the distribution.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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****************************************************************************/
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#include "memblock.h"
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#include <stdlib.h>
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bool gmio_memblock_isnull(const struct gmio_memblock *mblock)
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{
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return mblock == NULL || mblock->ptr == NULL || mblock->size == 0;
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}
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struct gmio_memblock gmio_memblock(
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void* ptr, size_t size, void (*func_deallocate)(void*))
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{
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struct gmio_memblock buff;
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buff.ptr = ptr;
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buff.size = ptr != NULL ? size : 0;
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buff.func_deallocate = func_deallocate;
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return buff;
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}
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struct gmio_memblock gmio_memblock_malloc(size_t size)
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{
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return gmio_memblock(malloc(size), size, &free);
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}
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struct gmio_memblock gmio_memblock_calloc(size_t num, size_t size)
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{
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return gmio_memblock(calloc(num, size), num * size, &free);
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}
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struct gmio_memblock gmio_memblock_realloc(void* ptr, size_t size)
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{
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return gmio_memblock(realloc(ptr, size), size, &free);
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}
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void gmio_memblock_deallocate(struct gmio_memblock *mblock)
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{
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if (mblock != NULL && mblock->func_deallocate != NULL) {
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mblock->func_deallocate(mblock->ptr);
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mblock->ptr = NULL;
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mblock->size = 0;
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}
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}
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static struct gmio_memblock gmio_memblock_default_internal_ctor()
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{
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return gmio_memblock_malloc(128 * 1024); /* 128 KB */
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}
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/* Warning: global variable ... */
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static gmio_memblock_constructor_func_t gmio_global_mblock_ctor =
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gmio_memblock_default_internal_ctor;
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void gmio_memblock_set_default_constructor(gmio_memblock_constructor_func_t ctor)
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{
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if (ctor != NULL)
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gmio_global_mblock_ctor = ctor;
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}
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gmio_memblock_constructor_func_t gmio_memblock_default_constructor()
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{
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return gmio_global_mblock_ctor;
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}
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struct gmio_memblock gmio_memblock_default()
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{
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return gmio_global_mblock_ctor();
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}
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